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Seborrheic Dermatitis

Definition

Seborrheic dermatitis is a chronic skin condition that causes a red, scaly, itchy rash. It can appear as a mild, white scaling or a yellowish greasy or reddish scaly rash. Most commonly affected areas are along the hairline, in and behind the ears, on the eyebrows, around the nose, and on the chest.

Dandruff is a type of seborrheic dermatitis where there is a scaling of the skin on the scalp. The area can be dry or oily and is sometimes itchy.

In babies less than 1 month old, seborrheic dermatitis may cause a thick, yellow, crusted scalp rash known as cradle cap.

Diagnosis

You will be asked about your symptoms and medical history. A physical exam will be done. The diagnosis is made by the appearance of the rash.You may be referred to a doctor who specializes in skin disorders (a dermatologist).

Treatment

Treatments for seborrheic dermatitis are usually applied directly to the skin in the form of shampoo or lotion. Treatment depends on the severity of your symptoms.

There are many products to treat dandruff. Examples include:

Medicated Products

A variety of treatments are used for seborrheic dermatitis, such as:

Prescription or over-the-counter shampoos containing one or more of the following ingredients:

Zinc pyrithione

Hydrocortisone
or other cortisone (steroid) preparations

Selenium sulfide

Salicylic acid

Coal tar

Antifungal medications

Prescription or over-the-counter creams or lotions containing:

Hydrocortisone or other cortisone (steroid) preparations

Antifungal medications

Antibiotic medication

Pimecrolimus

Nonsteroidal creams that are anti-inflammatory and antifungal

Calcineurin inhibitor

Lithium salt

Treatment can take several weeks or months and may need to be repeated if the condition returns.

Prevention

There are no guidelines for preventing seborrheic dermatitis because the cause is unknown.

Revisions

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This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.